Jealous
Alpha!Bakugo/ Omega!OC
Based on @omegaversethings scenting headcannon
Alpha getting jealous when their Omega best friend/crush comes home smelling like another alpha and can't help but scent them.
"It's late" Bakugo's voice rings out on the other end of her phone and Aiko bites her lower lip at the sound of her roommate's voice.
"I know, there was an office party today member?" Her voice comes out in a soft purr in an attempt to soothe the Alpha on the other end of the line. Bakugo lets out a gruff sigh running his hand through his hair at the sound of Aiko's soft purr his alpha calming slightly at the sound of her voice.
"Get home" It's all he says back before hanging up and Aiko rolls her eyes, her omega ready to go home at the request of the Alpha.
"Your Alpha calling you home?" Her co-worker Shindo teases shoving her with his shoulder gently. Aiko flashes her fangs at him a playful growl leaving her before tucking her head against his shoulder.
"You know he's not my alpha" Aiko sighs taking a drink "Bakugo wouldn't be interested in an omega like me" .
"Yeah and my hair isn't fucking purple" Hitoshi teases from across the table. The purple alpha shoots her a smile arm thrown over the shoulder of his smaller yellow-haired omega.
"Please who would want to be Bakugo's omega. The guy has no chill he'd run off any poor soul before they even got the chance" Denki chuckles rubbing his head against the scent glands on his Alpha's wrist.
"He's calmed down a bunch since we were all in school Denki" Aiko tries to defend her roommate who was still a little hot-headed but not nearly as bad as he had been when they were all students.
"Are you gonna head home?" Shindo asks from next to her and Aiko shakes her head determined to not let herself be controlled by an alpha who wasn't hers.
"Na not yet I don't have to go home, one more drink?" A smile spreads across Shindo's face he nods, Denki and Hitoshi murmuring words of agreement.
The bar was more packed than usual the heroes normally preferring this spot known for its chill calm environment. Aiko orders drinks for her table, a sharp sour smell taking over her senses as an Alpha steps up next to her.
"Hey pretty girl" The alpha leans in close his breath smelling of alcohol and an overwhelming sour note. It makes her stomach turn and not in a good way.
"Not interested." Aiko is polite not wanting to cause any problems for the bar as the pushy Alpha reaches over brushing a strand of hair off her shoulder. The scent glands on his wrist rubbing against her. Aiko's stomach turns as his scent overwhelms her a distressed chirp leaving her as the Alpha continued to invade her space. Aiko begins to panic but a familiar scent of pine and rain sweep over her as Shindo envelopes her and she stills. His arm wrapping around her waist and placing himself between her and the other Alpha.
"She's not interested" Shindo snarls teeth bared squaring off against the other Alpha who debates picking a fight before deciding she wasn't worth it and stalking off.
"You ok Tiny" Shindo hums turning his attention to her bringing his hands up to her face. Aiko nods a soft purr leaving her as the Alpha pulls her in close rubbing his hands up and down her back low rumbling purr coming from his chest in an attempt to soothe the distressed omega. Aiko reaches up to wrap her arms around Shindo's neck taking in his familiar scent. Pine and rain washing over her senses finally calming her down. Aiko smiles at him and the Alpha smiles back guiding her twords their table to continue their night.
Bakugo's scent hits her the second she walks into the house much to Aiko's surprised. His normally pleasant scent of firewood and smoke is overpowered by a burnt plastic smell that overwhelms her senses the further she walks into their shared apartment.
Aiko purrs for him instinctively in an attempt to soothe the upset Alpha. The sound reaches Bakugo first and he relaxes only to be instantly slammed by the scent of another alpha on the omega. /his/ omega.
Bakugo is in front of her in a flash picking her up and dropping both of them down on the couch Aiko tucked into his lap back pressed against his chest, trapped by strong arms securely wrapped around her waist. Bakugo takes a sniff and lets out an exaggerated gag nuzzling his nose against the scent glands on Aiko's neck.
"Ba-k-u what- what the hell" Aiko's face is beat red as the Alpha darts his tongue out, gently licking at her neck. The omega's breath hitches and Bakugo can't help himself as he starts to scent her. Possessively nipping at the smaller wonan's neck and shoulder nuzzling his cheeks against hers.
Bakugo roughly takes Aiko's wrists in his hands bringing them back and up to him, nuzzling his face into her hands and lapping at the glands at the base of her wrist. Aiko can't help the soft mewls that leave her, chest heaving soft pants slipping through her lips as the Alpha roughly nips at her neck. The only thing keeping her in place is his grip on her arms and the warning snarls that leave the Alpha when she squirms too much in his lap.
Bakugo's alpha settles when Aiko's normal citrusy smell blooms again through the scent of pine, mingling with his scent and the smell of pine is no longer lingering on her. Aiko is breathless face and neck a bright red when Bakugo finally loosens his tight grip on her.
"What the hell Bakugo" Aiko wants it to come out as a snarl but it's more of a breathy whimper. The explosive alpha smirks at her flashing his fangs as she turns in his lap so that she's facing him, straddling his waist.
"I didn't like that disgusting scent you covered yourself in before coming home." He snaps pulling her hands up to wrap around his neck and nuzzling his nose against her neck again. Their scents glands rubbing against each other and if Aiko's face could have gotten any reader it would have.
"It was by mistake some asshole was hitting on me at the bar and Shindo was just trying to calm me down afterward. Come on Katsuki you're such a jealous prick, you should know by now the only person I want scenting me is your stupid ass."
The blond pulls back eyebrows scrunched as he looks at her. Aiko freezes like a deer caught in headlights, the omega panics. She shouldn't have said that things would be weird now damn it why did she always have to put her foot in her mouth. A sly smile creeps over Bakugo's face as he looks at her.
“So are you gonna be mine now or what?” Bakugo asks his voice cockey and Aiko can't help herself when the hand around his neck comes up to slap the back of his head hard. Bakugo snarls at her a sound that to anyone else would have sounded threatening. But Aiko knows he's only playing with her, she buries her head against his shoulder. Nose nuzzling at the scent glands on his neck. The alpha purrs deep in his chest a sound Aiko never really got to hear and it gives her the courage she needs to reach her tongue out giving the glands on Katsuki's neck little kitten licks and soft nibbles.
The alpha under her groans the grip on her waist tightening as he ruts up into her.
"My good little omega" Bakugo growls into her ear and it goes straight to her core. Shifting down against him instinctively a whimper leaving her as she bites down onto his scent glands.
"All yours Alpha" Aiko whimpers against his neck.
The next day Aiko walks into work smelling of campfire. Her co-workers smirking as she changes into her hero outfit.
"Fucking took him long enough damn. I had to practically drench you in my scent just to get him to act." Shindo chides and Aiko turns face red.
"You did that on purpose?!" She yells at him poking a finger hard at his chest and the dark-haired Alpha laughs stepping away from her.
"Hey you're spoken for now, can't be so liberal with how I touch you anymore." He teases putting his hands up and backing away from her teasingly.
"Na I bet Bakugo loves it" Hitoshi comes up from behind her ruffling her hair and a lavender scent clinging to her.
And if she comes home smelling of pine and lavender. Well, it's just a good excuse for Bakugo to pin her down and claim her. Their scents permanently mingling so that no other alpha will ever touch her again.